4050| 15
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請教各位直徑400毫米長800壁厚4毫米管子怎么加工或者哪里可以買到 |
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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